压痕测试仪器的研制与试验分析  

Design and Experimental of Indentation Testing Device

作　　者：付海双 赵宏伟[2] 王平[1] 徐迪孟 史文欣 FU Haishuang;ZHAO Hongwei;WANG Ping;XU Dimeng;SHI Wenxin(Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun1300033;College of Mechanical Science ＆Engineering,Jilin University,Changchun130025)

机构地区：[1]中国科学院长春光学精密机械与物理研究所,长春130033 [2]吉林大学机械科学与工程学院,长春130025

出　　处：《长春理工大学学报（自然科学版）》2018年第3期5-9,21,共6页Journal of Changchun University of Science and Technology(Natural Science Edition)

基　　金：国家973计划资助项目(2009CB72400607)

摘　　要：为研究材料的微观力学性能,设计了一套压痕测试装置。首先对关键零部件柔性铰链进行仿真分析,在最大量程时柔性铰链所受应力为49.85MPa,远小于柔性铰链的屈服强度;之后进行了整机仿真分析,装置固有频率达到527.71Hz,装置在实验过程中不会发生共振。然后校准了传感器的线性度,其线性度都达到0.99以上,满足精度要求。最后利用校准后的仪器开展铝合金研究工作,验证了铝合金在预拉力下材料微观力学性能的变化趋势。In order to study the micro-mechanical properties of materials,a system of indentation testing device was designed. Firstly,simulation analysis was conducted for the key component of flexure hinge. The pressure on flexure hinge was 49.85 MPa at the maximum range. The whole device was simulated and analyzed afterwards. This device＇s inherent frequency was 527.71 Hz and no resonance occurred. Then the linearity was calibrated and proved to be higher than 0.99 which met the accuracy requirement. Finally,this calibrated device was used on aluminum alloy study for verifying its variation trend of mechanical property under pretension force.

关 键 词：测试装置 仿真分析 铝合金 微观力学 

分 类 号：TH87[机械工程—仪器科学与技术]